<p>The invention relates to a smoking article comprising a carbonaceous dried gel (3), (such as a xerogel, aerogel or cryogel), a filter (2) for a smoking article comprising a carbonaceous dried gel and the use of a carbonaceous dried gel for the filtration of smoke.</p>
申请公布号
WO2011030151(A1)
申请公布日期
2011.03.17
申请号
WO2010GB51504
申请日期
2010.09.09
申请人
BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED;BRANTON, PETER;SCHUTH, FERDI;SCHWICKARDI, MANFRED
